Blue dragon leather

Blue Dragon Leather is a members-only item on the OSRS Grand Exchange in the other category.

In-game examine text: "It's a piece of prepared blue dragonhide."

It has a Grand Exchange buy limit of 13,000 every four hours, a high alchemy value of 42 gp, and item ID 2505.

View on OSRS Wiki

Blue Dragon Leather shows an active flip setup with a margin of +14 gp and 716,477 trades over the last 24 hours.

At the buy limit of 13,000 every four hours, max profit per cycle is about 182.0k gp — high margin with healthy liquidity.